feat: number range slider

public/styles/main.css

@@ -2244,8 +2244,6 @@ p {
 }
 
 .endpoint-form {
-	display: grid;
-	grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
 	gap: 0.5rem 0.75rem;
 	margin-top: 0.5rem;
 }
@@ -3794,6 +3792,77 @@ html {
 	font-family: 'Courier New', monospace !important;
 }
 
+/* Number range slider styles */
+.number-range-container {
+	display: flex;
+	flex-direction: column;
+	gap: 0.5rem;
+}
+
+.range-slider {
+	width: 100%;
+	height: 6px;
+	background: rgba(255, 255, 255, 0.1);
+	border-radius: 3px;
+	outline: none;
+	cursor: pointer;
+	-webkit-appearance: none;
+	appearance: none;
+}
+
+.range-slider::-webkit-slider-thumb {
+	-webkit-appearance: none;
+	appearance: none;
+	width: 18px;
+	height: 18px;
+	background: var(--accent-primary);
+	border-radius: 50%;
+	cursor: pointer;
+	border: 2px solid var(--bg-secondary);
+	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
+}
+
+.range-slider::-moz-range-thumb {
+	width: 18px;
+	height: 18px;
+	background: var(--accent-primary);
+	border-radius: 50%;
+	cursor: pointer;
+	border: 2px solid var(--bg-secondary);
+	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
+}
+
+.range-slider::-webkit-slider-track {
+	background: rgba(255, 255, 255, 0.1);
+	border-radius: 3px;
+	height: 6px;
+}
+
+.range-slider::-moz-range-track {
+	background: rgba(255, 255, 255, 0.1);
+	border-radius: 3px;
+	height: 6px;
+	border: none;
+}
+
+.range-display {
+	display: flex;
+	align-items: center;
+	justify-content: space-between;
+	font-size: 0.9rem;
+	color: var(--text-secondary);
+}
+
+.range-value {
+	font-weight: 600;
+	color: var(--accent-primary);
+	font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+}
+
+.range-max {
+	opacity: 0.7;
+}
+
 .color-rgb-display:focus {
 	border-color: rgba(139, 92, 246, 0.5) !important;
 	background: rgba(139, 92, 246, 0.08) !important;